10%甘露醇溶液可以用来()。
A.催吐
B.洗胃
C.导泻
D.灌肠
E.吸氧
参考答案:C
解析:
[知识点] 急性中毒的治疗原则
—Can you give me a hand, Robin?
—But, Helen, you ____ my help every five minutes. I ___ TV now. [ ]
A. need, am watching
B. need, watch
C. are needing, watch
D. are needing, am watching
金属材料在弯曲时,中部介于拉压应力作用之间的一层,不受拉压应力作用,不发生伸长或缩短的变化,这一层叫()。